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| author | Igor Slepchin <[email protected]> | 2018-09-24 22:44:03 -0400 |
|---|---|---|
| committer | Igor Slepchin <[email protected]> | 2018-10-11 01:07:19 -0400 |
| commit | 210665e8a252faecf28ccebade999e734ab92582 (patch) | |
| tree | 8b81350cb43fd9a59ea13e34e03017f82fccbef3 /erts/preloaded | |
| parent | 3daef1a4ee8cfce90d0220be3695809ccbb8ea58 (diff) | |
| download | otp-210665e8a252faecf28ccebade999e734ab92582.tar.gz otp-210665e8a252faecf28ccebade999e734ab92582.tar.bz2 otp-210665e8a252faecf28ccebade999e734ab92582.zip | |
Add nopush TCP socket option
This translates to TCP_CORK on Linux and TCP_NOPUSH on
BSD.
In effect, this acts as super-Nagle: no partial TCP segments
are sent out until this option is turned off. Once turned off,
all accumulated unsent data is sent out immediately. The latter
is *not* the case on OSX, hence the implementation ignores
"nopush" on OSX to reduce confusion.
Diffstat (limited to 'erts/preloaded')
| -rw-r--r-- | erts/preloaded/src/prim_inet.erl | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/erts/preloaded/src/prim_inet.erl b/erts/preloaded/src/prim_inet.erl index 8169943dde..c98c7937b7 100644 --- a/erts/preloaded/src/prim_inet.erl +++ b/erts/preloaded/src/prim_inet.erl @@ -1275,6 +1275,7 @@ enc_opt(pktoptions) -> ?INET_OPT_PKTOPTIONS; enc_opt(ttl) -> ?INET_OPT_TTL; enc_opt(recvttl) -> ?INET_OPT_RECVTTL; enc_opt(nodelay) -> ?TCP_OPT_NODELAY; +enc_opt(nopush) -> ?TCP_OPT_NOPUSH; enc_opt(multicast_if) -> ?UDP_OPT_MULTICAST_IF; enc_opt(multicast_ttl) -> ?UDP_OPT_MULTICAST_TTL; enc_opt(multicast_loop) -> ?UDP_OPT_MULTICAST_LOOP; @@ -1336,6 +1337,7 @@ dec_opt(?INET_OPT_PRIORITY) -> priority; dec_opt(?INET_OPT_TOS) -> tos; dec_opt(?INET_OPT_TCLASS) -> tclass; dec_opt(?TCP_OPT_NODELAY) -> nodelay; +dec_opt(?TCP_OPT_NOPUSH) -> nopush; dec_opt(?INET_OPT_RECVTOS) -> recvtos; dec_opt(?INET_OPT_RECVTCLASS) -> recvtclass; dec_opt(?INET_OPT_PKTOPTIONS) -> pktoptions; @@ -1422,6 +1424,7 @@ type_opt_1(pktoptions) -> opts; type_opt_1(ttl) -> int; type_opt_1(recvttl) -> bool; type_opt_1(nodelay) -> bool; +type_opt_1(nopush) -> bool; type_opt_1(ipv6_v6only) -> bool; %% multicast type_opt_1(multicast_ttl) -> int; |